linux-kernel - Re: [PATCH] rds: fix building with IPV6=m

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Date:   Tue, 14 Aug 2018 10:06:52 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     arnd@...db.de
Cc:     santosh.shilimkar@...cle.com, anders.roxell@...aro.org,
        gthelen@...gle.com, ka-cheong.poon@...cle.com,
        stephen@...workplumber.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, rds-devel@....oracle.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rds: fix building with IPV6=m

From: Arnd Bergmann <arnd@...db.de>
Date: Tue, 14 Aug 2018 11:07:42 +0200

> When CONFIG_RDS_TCP is built-in and CONFIG_IPV6 is a loadable
> module, we get a link error agains the modular ipv6_chk_addr()
> function:
> 
> net/rds/tcp.o: In function `rds_tcp_laddr_check':
> tcp.c:(.text+0x3b2): undefined reference to `ipv6_chk_addr'
> 
> This adds back a dependency that forces RDS_TCP to also be
> a loadable module when IPV6 is one.
> 
> Fixes: e65d4d96334e ("rds: Remove IPv6 dependency")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied.